public class e7_2 {
    public static void main(String[] args) {
        ShowBoard board = new ShowBoard();
        board.showMess(new OutputEnglish());
        board.showMess(new OutputAlphabet() {
            @Override
            public void output() {
                for(char c='α';c<='ω';c++)
                    System.out.printf("%3c",c);
            }
        });
    }
}

